Techniques for wireless transmission of data are provided, in which data representing a plurality of frames of a time-sequential signal are encoded. The encoded data are temporarily retained in a memory buffer before wireless transmission. A current number of frames of the encoded data awaiting transmission is determined, and a compression rate is selected for encoding the next frame of data of the time-sequential signal based on the determined number of stored frames in the memory buffer. The selected compression rate is used to encode the next frame of the time-sequential signal, which is added to the encoded data stored in the memory buffer and wirelessly transmitted from the memory buffer. The present disclosure is applicable to a smartphone and a portable player, for example.